Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Why are stroke patients excluded from TPA therapy?
2001576 citationsP A Barber, Andrew M. Demchuk et al.Neurologyprofile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of P A Barber's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by P A Barber with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites P A Barber more than expected).
This network shows the impact of papers produced by P A Barber. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by P A Barber. The network helps show where P A Barber may publish in the future.
Co-authorship network of co-authors of P A Barber
This figure shows the co-authorship network connecting the top 25 collaborators of P A Barber.
A scholar is included among the top collaborators of P A Barber based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with P A Barber. P A Barber is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Simon, James E., Chul‐Ho Sohn, Michael D. Hill, et al.. (2005). Presence of DWI lesion an acute MRI in minor stroke and TIA patients predicts recurrent stroke and clinical outcome. Stroke. 36. 425–425.5 indexed citations
Zhao, Zirun, Nitin Chauhan, Peng Sun, P A Barber, & Alastair M. Buchan. (2003). Fimbria/Fornix deafferentation protects CA1 neurons and enhances neurogenesis in hippocampus following global ischemia. Stroke. 34. 306–306.1 indexed citations
Kennedy, James, et al.. (2002). Organised stroke care increases the numbers and the speed with which patients with acute ischemic stroke are thrombolysed. Stroke. 33. 354–354.31 indexed citations
11.
Simon, James E., Robert E. J. Ryder, Richard Frayne, et al.. (2002). Reliable computer assisted measurement of stroke lesion volumes. Stroke. 33. 363–363.6 indexed citations
12.
Barber, P A, et al.. (2001). Why are stroke patients excluded from TPA therapy?. Neurology. 56(8). 1015–1020.576 indexed citations breakdown →
13.
Barber, P A, Andrew M. Demchuk, Robert J. Sevick, et al.. (2000). The validity and reliability of a novel quantitative CT score in predicting outcome prior to thrombolytic treatment. Stroke. 31(1). 275–275.20 indexed citations
14.
Hill, P A Barber, & Alastair M. Buchan. (2000). The Canadian Activase for Stroke Effectiveness Study (CASES). Stroke. 31. 315–315.6 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.